Across
- 2. scientist who made the periodic table
- 3. electron in an outer shell
- 5. elements that are shiny and good conductors
- 7. list of all known elements
- 8. positive subatomic particle
- 9. negative subatomic particle
- 10. smallest part of an element
- 12. row on the periodic table
Down
- 1. elements that are insulators and are not shiny
- 2. have properties of metals and nonmetals
- 4. used to organize elements on the table
- 6. subatomic particle with no charge
- 11. column on the periodic table